/*

 * Copyright (c) 2005

 *	Eric Anholt.  All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND

 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE

 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

 * SUCH DAMAGE.

 */

//Portions Copyright (c)  2008-2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. 

#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

#include <liboilclasses.h>

#include <liboilfunction.h>

#include <emmintrin.h>

#include <liboilcolorspace.h>

#define SSE_FUNCTION __attribute__((force_align_arg_pointer))

#define COMPOSITE_ADD(d,s) oil_clamp_255((d) + (s))

SSE_FUNCTION static void

composite_add_argb_sse (uint32_t *dest, const uint32_t *src, int n)

{

  /* Initial operations to align the destination pointer */

  for (; ((long)dest & 15) && (n > 0); n--) {

    uint32_t d = *dest, s = *src++;

    *dest++ = oil_argb(

	COMPOSITE_ADD(oil_argb_A(d), oil_argb_A(s)),

	COMPOSITE_ADD(oil_argb_R(d), oil_argb_R(s)),

	COMPOSITE_ADD(oil_argb_G(d), oil_argb_G(s)),

	COMPOSITE_ADD(oil_argb_B(d), oil_argb_B(s)));

  }

  for (; n >= 4; n -= 4) {

    __m128i s;

    s = _mm_loadu_si128((__m128i *)src);

    *(__m128i *)dest = _mm_adds_epu8(s, *(__m128i *)dest);

    src += 4;

    dest += 4;

  }

  for (; n > 0; n--) {

    uint32_t d = *dest, s = *src++;

    *dest++ = oil_argb(

	COMPOSITE_ADD(oil_argb_A(d), oil_argb_A(s)),

	COMPOSITE_ADD(oil_argb_R(d), oil_argb_R(s)),

	COMPOSITE_ADD(oil_argb_G(d), oil_argb_G(s)),

	COMPOSITE_ADD(oil_argb_B(d), oil_argb_B(s)));

  }

}

OIL_DEFINE_IMPL_FULL (composite_add_argb_sse, composite_add_argb,

    OIL_IMPL_FLAG_SSE2);

SSE_FUNCTION static void

composite_add_argb_const_src_sse (uint32_t *dest, const uint32_t *src_1, int n)

{

  __m128i s;

  uint32_t val = *src_1;

  /* Initial operations to align the destination pointer */

  for (; ((long)dest & 15) && (n > 0); n--) {

    uint32_t d = *dest;

    *dest++ = oil_argb(

	COMPOSITE_ADD(oil_argb_A(d), oil_argb_A(val)),

	COMPOSITE_ADD(oil_argb_R(d), oil_argb_R(val)),

	COMPOSITE_ADD(oil_argb_G(d), oil_argb_G(val)),

	COMPOSITE_ADD(oil_argb_B(d), oil_argb_B(val)));

  }

  s = _mm_set1_epi32(val);

  for (; n >= 4; n -= 4) {

    __m128i xmm0;

    xmm0 = _mm_adds_epu8(s, *(__m128i *)dest);

    _mm_store_si128((__m128i *)dest, xmm0);

    dest += 4;

  }

  for (; n > 0; n--) {

    uint32_t d = *dest;

    *dest++ = oil_argb(

	COMPOSITE_ADD(oil_argb_A(d), oil_argb_A(val)),

	COMPOSITE_ADD(oil_argb_R(d), oil_argb_R(val)),

	COMPOSITE_ADD(oil_argb_G(d), oil_argb_G(val)),

	COMPOSITE_ADD(oil_argb_B(d), oil_argb_B(val)));

  }

}

OIL_DEFINE_IMPL_FULL (composite_add_argb_const_src_sse,

    composite_add_argb_const_src, OIL_IMPL_FLAG_SSE2);

SSE_FUNCTION static void

composite_add_u8_sse (uint8_t *dest, const uint8_t *src, int n)

{

  /* Initial operations to align the destination pointer */

  for (; ((long)dest & 15) && (n > 0); n--) {

    int x = (int)*dest + *src++;

    if (x > 255) 

      x = 255;

    *dest++ = x;

  }

  for (; n >= 16; n -= 16) {

    __m128i d, s;

    s = _mm_loadu_si128((__m128i *)src);

    d = _mm_adds_epu8(s, *(__m128i *)dest);

    _mm_store_si128((__m128i *)dest, d);

    src += 16;

    dest += 16;

  }

  for (; n > 0; n--) {

    int x = (int)*dest + *src++;

    if (x > 255) 

      x = 255;

    *dest++ = x;

  }

}

OIL_DEFINE_IMPL_FULL (composite_add_u8_sse, composite_add_u8,

    OIL_IMPL_FLAG_SSE2);

SSE_FUNCTION static void

composite_add_u8_const_src_sse (uint8_t *dest, const uint8_t *src_1, int n)

{

  __m128i s;

  int val = *src_1;

  /* Initial operations to align the destination pointer */

  for (; ((long)dest & 15) && (n > 0); n--) {

    int x = *dest + val;

    if (x > 255) 

      x = 255;

    *dest++ = x;

  }

  s = _mm_set1_epi8(val);

  for (; n >= 16; n -= 16) {

    __m128i d;

    d = _mm_adds_epu8(*(__m128i *)dest, s);

    _mm_store_si128((__m128i *)dest, d);

    dest += 16;

  }

  for (; n > 0; n--) {

    int x = *dest + val;

    if (x > 255) 

      x = 255;

    *dest++ = x;

  }

}

OIL_DEFINE_IMPL_FULL (composite_add_u8_const_src_sse,

    composite_add_u8_const_src, OIL_IMPL_FLAG_SSE2);

#ifdef	__SYMBIAN32__

OilFunctionImpl* __oil_function_impl_composite_add_argb_sse, composite_add_argb() {

		return &_oil_function_impl_composite_add_argb_sse, composite_add_argb;

}

#endif

#ifdef	__SYMBIAN32__

OilFunctionImpl* __oil_function_impl_composite_add_argb_const_src_sse() {

		return &_oil_function_impl_composite_add_argb_const_src_sse;

}

#endif

#ifdef	__SYMBIAN32__

OilFunctionImpl* __oil_function_impl_composite_add_u8_sse, composite_add_u8() {

		return &_oil_function_impl_composite_add_u8_sse, composite_add_u8;

}

#endif

#ifdef	__SYMBIAN32__

OilFunctionImpl* __oil_function_impl_composite_add_u8_const_src_sse() {

		return &_oil_function_impl_composite_add_u8_const_src_sse;

}

#endif